the perimeter of a rectangle is 49 meters. The length of it is 4 meters less than 5 times it's breadth. Find the length.
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Answer:
19.75m
Step-by-step explanation:
b = x
l = 5x-4
perimeter = 2(l+b)
ATQ,
2(l+b) = 49
l+b = 49/2 = 24.5
5x-4+x = 24.5
6x = 28.5
x = 28.5/6 = 4.75
l = 5x - 4 = 5 * 4.75 - 4 = 23.75 - 4=19.75
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